I'm OK thanks Sarah - I've replied on your thread.
I've found that as my body/brain has got used to Pregabalin and it has levelled out my anxiety has returned but never to the heights that it was pre Pregabalin. The Pregabalin seems to take the edge off it still.
I agree with your thoughts about exercise, it must be frustrating having back pain. I exercise most days, even when I don't want to I still go and it does help. Is there any exercise you could do? Maybe swimming, yoga or walking?